• Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech

Steeda 19 users: vacuum at idle?

  • Thread starter Thread starter Rootus
  • Start date Start date Jul 28, 2007

Rootus

Officially Addicted
Feb 8, 2003
6,659
1
0
Portland, Oregon
Jul 28, 2007
#1
  • Jul 28, 2007
  • #1
Whatcha getting for idle vacuum?

I've got a friend with a stock 5.0 (recently built), 95 GT, trickflow package with the TFS cam swapped out for a Steeda 19 (original intent was no tuning). I'm seeing about 14 inches of vacuum at idle, which to my mind seems pretty low -- that's only about 1.5 or 2 inches higher than I was getting with my FTI custom cam, and it was quite a lot meatier than the steeda 19 is.

So tell me what you're seeing. I was expecting at least 17 or so (IIRC stock HO cam should be ~21-22). Sure would explain why it won't idle worth a crap on the stock tune. I've got it running a very slightly modified J4J1 for the moment, but it's still acting a little silly. Kinda like it has a big vacuum leak (haven't found one yet, though).

Thanks,
Dave
 
T

tjh566

New Member
May 22, 2004
608
0
0
Northern Va
Aug 2, 2007
#2
  • Aug 2, 2007
  • #2
At idle Im seeing around 13-15 If I can recall correctly, I know it was nowhere near 20 tho, sub 15, Its been awhile since Ive payed attention to it.
 
M

mojopony

New Member
Sep 9, 2007
71
1
0
Sep 10, 2007
#3
  • Sep 10, 2007
  • #3
I get about 17 inches with my Ultradyne. 216 degrees @ .05" and .477" lift with 1.6 rockers, but I'm running 1.72 rockers so I'm closer to .513" lift. LSA is 114 degrees.
 
You must log in or register to reply here.

Similar threads

SURGING IDLE / NO IDLE CHECKLIST FOR 1996–1998 MUSTANG GT (4.6L 2V) - Work In Progress
  • Noobz347
  • Aug 30, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
696
1996 - 2004 SN95 Mustang -General/Talk- Aug 30, 2025
Noobz347
SURGING IDLE / NO IDLE CHECKLIST FOR 1999–2004 MUSTANG GT (4.6L 2V) - Work In Progress
  • Noobz347
  • Aug 30, 2025
  • 1996 - 2004 SN95 Mustang -General/Talk-
Replies
0
Views
829
1996 - 2004 SN95 Mustang -General/Talk- Aug 30, 2025
Noobz347
SN95 Desktop 363 Engine Combination - Looking for input
  • WhiteCobra95
  • Sep 8, 2025
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
Replies
11
Views
1K
1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk- Oct 6, 2025
Habu135
Specific Cam Questions that Google can't seem to answer...
  • ChillPhatCat
  • Jun 20, 2024
  • 2.3L (N/A & Turbo) Tech
Replies
3
Views
779
2.3L (N/A & Turbo) Tech Jun 22, 2024
ChillPhatCat
W
Resolved Loss of Horsepower After Base Idle Reset??
  • WTW
  • Aug 12, 2023
  • Fox 5.0 Mustang Tech
Replies
8
Views
2K
Fox 5.0 Mustang Tech Aug 13, 2023
WTW
W
Share:
Bluesky Email Share Link
  • Mustang Forums
  • 1979 - 1995 (Fox, SN95.0, & 2.3L) -General/Talk-
  • 1994 - 1995 Specific Tech
Menu
Log in

Register

  • Forums
  • What's new
  • Media
  • Resources
  • Contact
  • Sponsor
X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?

X

Privacy & Transparency

We use cookies and similar technologies for the following purposes:

  • Personalized ads and content
  • Content measurement and audience insights

Do you accept cookies and these technologies?